Ruby on rails I'；与m.Hartl'一起学习Rails；s教程。第11.2.5章，并在测试中得到此错误：ArgumentError:错误参数（预期的URI对象或URI字符串）

完整错误消息：

1) RelationshipsController creating a relationship with Ajax should increment the     Relationship count
Failure/Error: xhr :post, :create, relationship: { followed_id: other_user.id }
ArgumentError: bad argument (expected URI object or URI string)
# ./spec/requests/relationships_controller_spec.rb:14:in `block (4 levels) in <top (required)>'
# ./spec/requests/relationships_controller_spec.rb:13:in `block (3 levels) in <top (required)>'

2) RelationshipsController creating a relationship with Ajax should respond with success
Failure/Error: xhr :post, :create, relationship: { followed_id: other_user.id }
ArgumentError: bad argument (expected URI object or URI string)
# ./spec/requests/relationships_controller_spec.rb:19:in `block (3 levels) in <top (required)>'

3) RelationshipsController destroying a relationship with Ajax should decrement the Relationship count
Failure/Error: xhr :delete, :destroy, id: relationship.id
ArgumentError: bad argument (expected URI object or URI string)
# ./spec/requests/relationships_controller_spec.rb:31:in `block (4 levels) in <top (required)>'
# ./spec/requests/relationships_controller_spec.rb:30:in `block (3 levels) in <top (required)>'

4) RelationshipsController destroying a relationship with Ajax should respond with success
Failure/Error: xhr :delete, :destroy, id: relationship.id
ArgumentError: bad argument (expected URI object or URI string)
# ./spec/requests/relationships_controller_spec.rb:36:in `block (3 levels) in <top (required)>'

1）RelationshipController使用Ajax创建关系时应增加关系计数
失败/错误：xhr:post，：create，关系：{followed\u id:other\u user.id}
ArgumentError:参数错误（应为URI对象或URI字符串）
#./spec/requests/relationships\u controller\u spec.rb:14:in'block（4级）in'
#./spec/requests/relationships\u controller\u spec.rb:13:in'block（3层）in'
2） RelationshipController创建与Ajax的关系时应成功响应
失败/错误：xhr:post，：create，关系：{followed\u id:other\u user.id}
ArgumentError:参数错误（应为URI对象或URI字符串）
#./spec/requests/relationships\u controller\u spec.rb:19:in'block（3层）in'
3） RelationshipController销毁与Ajax的关系时应减少关系计数
失败/错误：xhr:delete，：destroy，id:relationship.id
ArgumentError:参数错误（应为URI对象或URI字符串）
#./spec/requests/relationships\u controller\u spec.rb:31:in'block（4级）in'
#./spec/requests/relationships\u controller\u spec.rb:30:in'block（3层）in'
4） RelationshipController破坏与Ajax的关系时应成功响应
失败/错误：xhr:delete，：destroy，id:relationship.id
ArgumentError:参数错误（应为URI对象或URI字符串）
#./spec/requests/relationships\u controller\u spec.rb:36:in'block（3层）in'

在浏览器中，AJAX工作正常，但测试为红色：(

我对编程、Rails和Stackowerflow相当陌生。 请帮我解决这个问题。：3

看看这是否有帮助：

我还进一步阅读了上面的链接；您应该最大限度地利用Capybara，而不是将rspec与Rails为

操作*：：TestCase

提供的方法混合使用

您可以使用capybara的

页面。执行脚本（但必须启用
本例的javascript
：js=>true
）

在RailsTutorial（Rails 3.2）第11章的相同Ajax部分之后，我遇到了完全相同的问题。我认为MichaelDeSilva是正确的，因为xhr不幸与RSpec混合在一起

无论如何，我决定为了完整性起见（我几乎完成了教程），我打算让xhr在这里工作。我认为Mike Hartl的清单11.37应该使用ActionDispatcher:：Integration:：RequestHelpers方法xhr，如

而不是ActionController:：TestCase:：Behavior方法xhr，如

因此，我将对actions:create和：destroy的引用替换为它们的命名路由，清单11.37中的测试示例变为绿色

expect do
  xhr :post, :create, relationship: { followed_id: other_user.id }
end.to change(Relationship, :count).by(1)

expect do
  xhr :delete, :destroy, id: relationship.id
end.to change(Relationship, :count).by(-1)

变成

expect do
  xhr :post, relationships_path, relationship: { followed_id: other_user.id }
end.to change(Relationship, :count).by(1)

expect do
  xhr :delete, relationship_path(relationship.id), id: relationship.id
end.to change(Relationship, :count).by(-1)

还有，原版

expect do
  xhr :post, :create, relationship: { followed_id: other_user.id }
end.to change(Relationship, :count).by(1)

expect do
  xhr :delete, :destroy, id: relationship.id
end.to change(Relationship, :count).by(-1)

变成

expect do
  xhr :post, relationships_path, relationship: { followed_id: other_user.id }
end.to change(Relationship, :count).by(1)

expect do
  xhr :delete, relationship_path(relationship.id), id: relationship.id
end.to change(Relationship, :count).by(-1)

很抱歉，但我希望使用的方法与Rails教程中完全相同。例如“xhr:post，：create，relationship:{followed\u id:other\u user.id}”.想知道为什么测试是红色的是代码行。这正是我的观点，如果你能帮助的话，你真的不应该使用
xhr
方法。去查阅它。它列在
ActionController:：TestCase:：Behavior
…下。但是你使用的是RSpec！如果你说使用
test:：Unit
或
MiniTest
，然后是另一个故事。因此建议使用水豚来提出AJAX请求。Hartl不应该鼓励这样做！这应该是可以接受的答案！有完全相同的问题，它可以工作。谢谢！